# File lib/rvg/misc.rb, line 540
        def affine(sx, rx, ry, sy, tx, ty)
            sx, rx, ry, sy, tx, ty = Magick::RVG.convert_to_float(sx, rx, ry, sy, tx, ty)
            @gc.affine(sx, rx, ry, sy, tx, ty)
            @text_attrs.set_affine(sx, rx, ry, sy, tx, ty)
            nil
        end